Backdoor.Helios.B

Risk Level 1: Very Low

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Discovered:: November 12, 2003
Updated:: February 13, 2007 12:13:47 PM
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

Backdoor.Helios.B is a backdoor Trojan horse that is a variant of Backdoor.Helios. It is written in Microsoft Visual Basic, version 6.

Backdoor.Helios.B gives its creator unauthorized access to an infected computer using Internet Relay Chat (IRC).

The existence of the Ssvchost.exe file is an indication of a possible infection.

The Trojan attempts to disable some antivirus and firewall programs by terminating the active processes.

Antivirus Protection Dates

Initial Rapid Release version November 13, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version November 13, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date November 17, 2003

Click for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

Wild Level: Low
Number of Infections: 0 - 49
Number of Sites: 0 - 2
Geographical Distribution: Low
Threat Containment: Easy
Removal: Moderate

Damage

Damage Level: Medium

Distribution

Distribution Level: Low

Writeup By: Kevin Ha

Technical Details

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Internet Security Threat Report, Volume 16